NCERT/Class 11/Mathematics/Introduction to Three Dimensional Geometry

Introduction to Three Dimensional Geometry

Class 11 · Mathematics

49 questions28 easy14 medium7 hard

Sample Questions

Q1.A point in 3D space is represented by how many coordinates?

  • A1
  • B2
  • C3
  • D4

Q2.The number of octants in 3D coordinate geometry is:

  • A4
  • B6
  • C8
  • D12

Q3.The coordinate planes in 3D are:

  • Axy-plane, yz-plane, xz-plane
  • Bx-axis, y-axis, z-axis
  • Cxy-plane and xz-plane only
  • D8 octants

Q4.Find the coordinates of the point that is equidistant from (1, 2, 3), (3, 4, 5), and (5, 6, 1).

  • A(3, 4, 3)
  • B(2, 3, 4)
  • CLies on the perpendicular bisector planes
  • D(4, 5, 2)

Q5.Find the distance between (1, 2, 3) and (4, 5, 6).

  • A3√2
  • B3√3
  • C3
  • D9

Q6.This is a sample question to preview what you'll get in the full practice test...

  • A. Option one
  • B. Option two
  • C. Option three
  • D. Option four
Create a test to practice all 49 questions →

Concepts Covered

Collinearity in 3DCoordinate axes and planesCoordinates of a point in spaceDirection cosines and ratiosDistance formula in 3DMidpoint formula in 3DOctantsSection formula in 3DThree-dimensional coordinate system

Ready to practice?

Create a timed test from 49 questions in Introduction to Three Dimensional Geometry. Pick your difficulty, get instant scores.

Start Practice Test